Israel Defence Forces have sealed the last Hezbollah cross-border attack tunnels from Lebanon into northern Israel.

News of the operation comes six months after the IDF discovered six tunnels when it launched “Operation Northern Shield” last December.

Military spokesman Lt. Col. Jonathan Conricus informed reporters during a tunnel tour earlier this week that it was the “longest and deepest” Hezbollah tunnel near the town of Zarit.

The tunnel stretched to over 80 meters below ground with a height of a 22-storey building.

The army added the tunnel was intended for use by Hezbollah militants as it contained electrical wiring, fuse boxes and communications equipment.

Conricus confirmed the successful operation meant there were no more Hezbollah attack tunnels at the border.

Hezbollah has not commented.